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(No Model.) 2 Shets-Sheet 1.

F. B. THATOHER 8; J. W. JOHNSON.

BOTTLE FILLING MACHINE. No. 305,353. Patented Sept. 16, 1884..

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(N0 M de1.) 2 Sheets-Sheet 2.

F. B.- THATOHER & J. W. JOHNSON.

BOTTLE FILLING MACHINE.

No. 305,353. Patented Sept. 16, 1884.

. UNITE STATES PATENT OFFICE.

FREDERICK B. THATCHER AND JOSEPH W. JOHNSON, OF NElV BRITAIN, CONNECTICUT, ASSIGNORS TO LYMAN B. GOFF, TRUSTEE, OF PAW- TUCKET, RHODE ISLAND.

BOTTLE-FILLING MACHINE.

#BPIECIEICATION forming part of Letters Patent No. 305,353, dated September 16, 1884.

Application filed January 24, 1883. (No model.)

To all whom, it may 00ncern.-.

Be it known that we, FREDERICK B.THATCH- ER and J osnrrr W. J OHNSON, both of New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Bottle-Filling Machines, of which the following is a description reference being had to the accompanying drawings, where Figure 1 is aview of our device in elevation, showing a portion only of the table or stand and the parts in position for filling a bottle. Fig. 2 is a detail view in vertical section of the bottlc-stand and part of the table. Fig. 3 is a detail top view, on enlarged scale, of the guard device. Fig. 4 is a detail view, on enlarged scale, inhorizontal section, of the guard device. Fig. 5 is a detail side view, on enlarged scale, of the head of the machine. Fig. 6 is a view of the head in central vertical section, valve shut. Fig. 7 is a detail view of the head with parts in section, the view showing the position of the valve when a bottle is filling and a portion'of a bottle and stopper in dotted lines. Fig. Sis a top view of thehead and a part of the cross-bar to which it is fastened.

Our invention relates to the class of bottlefilling machines used for filling bottles with liquids under pressure-as those containing carbonic-acid gas.

It consists in details of the reciprocating frame, in the adjustable stand for the bottles While filling, in the automatic guard against flying pieces of bottles that break under the pressure, and in details of the head and contained valve, as more particularly hereinafter set forth. v

In the accompanying drawings, the letter a denotes a portion of a table or bench; b,a vertically-reciprocating upright frame formed of side rods, 0, cross-bars d and e vertically adjustable upon the rods. Springs f f, fast to the table and to projections on the rods, hold the frame in a position determined by the adjustable stops or collars 9, bearing on their upper surfaces against elastic washers h. Fast to the upper surface of the table is a metallic plate, 73, with the guides 13 for the rods and the central depression, j, the bottom of which serves as a seat for the bottle when long bottles are being filled. The bottom of this depression is provided with a drip-tube or outlet, through which fiuids draining into the depression escape. The upper part of this depression is formed with a shoulder, as shown, fitted to which is a plate or cover, having a central perforation, and which is used as a seat for the bottle when short bottles are being filled. The frame is operated by means of treadle 7c and connecting-rod Z. 011 avertical rod, m, fast to the table, is pivoted the automatic guard n, formed in two parts, a a, formed and arranged to inclose the bottle when shut, held open by spring 0, lodged in seats formed in the sections of the guard,as shown, and closed by the wedge 1), adj ustably secured to the frame, which is thrust between the jaws of the guard back of the rod mpvhen the frame is depressed. The guard is held closed by the wedge until the frame is raised, and is perforated to allow the gas to escape to avoid pressure, whichmight otherwise burst the guard with the bottle; but' it is sufficiently close to intercept the flying pieces of glass. The head r is preferably of cast metal, and has a screw-threaded lateral stem, 1*, to which the leader pipe from aforce-pump may be coupled, a flanged rectangular neck, r which fits and is firmly held within a socket in the upper cross-bar, and a central cavity, 8, opening down- Ward. screw-threaded plug, 15, and elastic packing it, held in place by the flanged coupling-nut 0. Within the head and passing through plug and packing is arranged. the reciprocating valvestem a.,the upper end of the stem moving in the guide-cavityr and its lower end protruded belowthe bottom of the plug by spring cwithin the head. The upper surface of the plug t has a raised tapering seat, upon which is fitted the metallic or, as preferred, indi'a-rubber cupshaped packing b. Whenthe valve is closed; the opening a in the lower and tubular part of the valve-stem is below the upper surface of the plug.

This form of head and valve is adapted for This cavity is closed from below by a use with bottles having stoppers with centrallymonth of the bottle, of the class shown in our application filed October 25, 1882.

The operation of the device is as follows: The bottle is placed in the depression j or on the cover or platej, and the frame bearing the headr is brought down by means of the treadle until the projecting end of the tubular valvestem sets on the metal cap of the stopper, sub stantially as shown in Fig. 7 of the drawings by the dotted lines. The pressure being eon tinned, the valve is lifted from its seat until the port in the stem of the valve is carried above the screw-threaded plug '5 and the liquid forced into the bottle through the opened valve down through the opening in the cap and stem of the metal part of the stopper, and through the side ports formed in the elastic packing of the stopper, as indicated by the arrows in Fig. 7 of the drawingsf \Vhen the bottle is filled, the lever by which the cork or stopper is secured is clan1ped,and the pressure fromthe inside closing the ports in the elastic packing,the bottle is thereby securely sealed. Simultaneously with the lilting of the frame to remove the filled bottle the guard is opened, the valve a is closed by the spring, and the apparatus ready for filling another bottle.

In our improved head and valve the cavity is securely closed and packed against leakage of the liquids under any working-pressrue at its only opening (stem not considered) by the plug and elastic packing. The valve is sure to close under pressure of the spring, and cannot be held open by upward pressure on the valve, as happens in cases where gravity operates the valve in closing,and all work upon the valve and plug can be done before assembling the parts at an advantage over other forms.

We claim as our invention- 1. In a bottle-filling machine,table a, frame b,with adjustable cross-bars d and e, springs f, automatic guard a, and adjustable wedge p, with means for vertically reciprocating the frame I), all substantially as described.

2. In a bottlefilling machine, the combination,with the table a and verticallyreciprocating frame I), of the plate z, formed or provided with the guides i, the central shouldered depression, j, and the cover j, as and for the purpose set forth.

3. In a bottle-fillin g machine, frame I), springs f, adjustable stops 9, and elastic cushions 71, all substantially as described.

4. In abottle-filling machine, the combination of a reciprocating frame, I), with the ad justable wedge 11, and an automatic guard, 02, all substantially as described.

5. In abottle-filling machine, in combination frame Z),with the adjustable wedge p, sprin gs f, automatic guard a, stand j, rod Z, and treadle 7c, all substantially as described.

6. The shield or guard a, consisting of the perforated sections a a pivotally secured together and formed with interior spring-seats, and provided with a spiral spring lodged in said seats, substantially as and for the purpose set forth.

7. The combination of the head 1', elastic packing a, nut 12. valve a, and spring 0, all substantially as described.

8. The combination of head 1*, having cavity 8, opening downward,plug t,bearing the valveseat, and tubular valve to, with packing I), all substantially as described.

9. The combinationof head 0", having cavity 8, opening downward, plug it, valve a, spring a, elastic packing a, and nut 11, all substantially as described.

10. In a bottle-filling machine, the head 1*, bearing the tubular valve a, having its opening (6 below the level of the plug when closed, all substantially as described.

FREDERICK B. TIIATCHER. JOSEPH WV. JOHNSON.

Witnesses:

Grills. L. BURnn'rT, ALBERT 0. TANN'ER. 

